The abbreviation RFA could stand for:
- Radio Free Asia
- Radiofrequency ablation
- Red Faction: Armageddon
- Refractor 2 File Archive
- Regional Facilitating Agency
- Regional Forestry Agreement
- Regulatory Flexibility Act
- Renewable Fuels Agency (UK)
- Renewable Fuels Association (United States)
- Restricted Free Agent
- Royal Field Artillery
- Royal Fleet Auxiliary
- Royal Frankish Annals